<template>
  <div>
    <nav-bar>
      <div slot="left" @click="backClick">
        <img src="~assets/img/common/back.svg" alt="" height="44px">
      </div>
      <div slot="center" class="title">
        <div class="title-item" 
        v-for="(item,index) in titles" :key="index"
        :class="{active: index === currentIndex}"
        @click="titleClick(index)">{{item}}</div>
      </div>
      </nav-bar>
  </div>
</template>

<script>

import NavBar from 'components/common/navbar/NavBar'

export default {
  name:"DetailNavBar",
  components:{
    NavBar
  },
  data(){
    return {
      titles: [ '商品','参数','评论','推荐'],
      currentIndex: 0
    }
  },
  methods:{
    titleClick(index){
      this.currentIndex = index
    },
    backClick(){
      this.$router.back()
    }
  }
}
</script>

<style scoped>
 .title{
   display: flex;
 }
 .title-item{
   flex:1;
 }

 .active {
   color:var(--color-high-text)
 }
</style>>

